self combustion reaction method using tungsten oxide with the purity of tungsten powder from zinc oxide and manufacturing method

摘要

self combustion reaction method (Self - propagating - temperature will Synthesis) using tungsten oxide (WO3) and zinc (Zn) from pure tungsten (w) powder and manufacturing method of it. according to the invention, the tungsten oxide (WO3) and zinc (Zn) of 1: (2 ~ 5) into the compound, 4 - 14t of molding pressure and compression to the ud3a0 formation. next, the ud3a0 independent combustion reactor in the field of argon (Ar) gas atmosphere in the self combustion reaction for 0.5 ~ 2.5MPa's pressure, and the point of order,. the formation of the products of combustion, the combustion reaction is to take the ship from about 10 ~ 20% by dilute hydrochloric acid (HCl) using the end product.then, the paper applied the use of leaching water filter to filter the water, washing, tungsten (w) themselves. so to get the pure tungsten (w) is 99.948% more of it to express.